Question

what is the ultimate source of energy for all ​

Answer 1

Answer:

sun

Explanation:

A clock is a device used to measure, keep, and indicate time. The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units: the day, the lunar month, and the year. Devices operating on several physical processes have been used over the millennia.

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Answer 2

$\star{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$

$\tt\pink{☯\:The \:Sun}$ is an infinite (at least in terms of human time scales) and renewable source of energy which is also by far the most important source of energy for us. Primary productivity (photosynthesis) is driven by sunlight and all our fossil fuels are derived from plants which existed millions of years ago.❤